Water tank cleaning at regular interval is important for the health of mankind. Water from water tank is used for bathing, brushing, washing and even for cooking. Not cleaning the tanks in regular intervals sometimes leads to compromising on the health of habitants. Around 60% of diseases caused to humans are water-borne. Contamination of water is major cause of illness to mankind and most usual ways water getting contaminated is through improper maintenance or not cleaning water tank at regular interval. Cleaning and disinfecting of Water Tank is very important where individual work or reside such as apartment complex, restaurant, in medium or large companies. It is duty of water tank owner or property manager to keep water tank clean and prevent contamination of water

 

Water storage tanks must be kept clean to prevent sludging, sediment and prevent water-borne disease. Keeping the water tank and reservoir clean is an important part of maintaining the water facilities of a building. There are two methods generally adopted in cleaning water tank. One is manual method where in a laborer would immerse himself in the tank and scrub the walls. Another method is tank cleaning with high water jet cleaners, anti-bacterial agents and disinfectants. This is also known as automated water tank cleaning.

 

Manual Water Tank Cleaning

 

This method is traditional method of cleaning water tank where a laborer would immerse in the tank and scrub the tank walls. This method is time consuming and need more effort to clean water tank. In this method, first tank is emptied either by using a pump or open outlet.  Then laborer or person who cleans the water tank immerse himself in the tank cleans internal wall using detergent and water. Then all internal surfaces are washed with plain water to remove all traces of detergent.

 

After cleaning, disinfect the water tank with HTH chlorine. Let the chlorine stand in the tank for 12 to 24 hours to ensure that the tank is fully disinfected. Completely empty the tank and carefully dispose of the disinfecting water as it will contain a high concentration of chlorine.

 

Refill the tank with clean water and allow water to stand for 30 minutes. Test the residual chlorine left in the tank using a comparator. If the residual chlorine concentration is 0.5mg/l or less, the tank is safe to use for water storage. If the concentration is greater, again empty the tank and refill with clean water. Re-test to check that the chlorine concentration is 0.5mg/l or less.

 

In this method, cleaning of water tank involves three important steps. First clean the tank, second step is to chlorinate tank and third step is to check chlorine concentration. But this method is very difficult and time consuming where the size of water tank is large. Manual method is suitable for individual homes or building having small size of water tank.

 

Automated water tank cleaning

 

Automated water tank cleaning enabled to save time and money. If you’re cleaning your tanks manually or by using the fill-and-drain method, you might be surprised at how much you can save by automating. Automated tank cleaning best suits for apartment complexes and companies or buildings installed with large water tank. Today professionals and companies dealing with automated tank cleaning equipments arrive at your door step with equipment to provide water tank cleaning within hours.

 

Advantage of Automated tank cleaning equipment is that it saves time and no need to get down in water tank to clean.

 

Automated tank cleaning process starts with cleaning Manhole and surroundings dirt, mud and algae. Then using special high pressure jet wall and all interiors are cleaned. Dirt and sludge are removed using a vacuum pump and industrial pump. After cleaning the water tank, the water tank is disinfected using chlorine or antibacterial agents. The process of cleaning ends with testing of residual chlorine left in the tank.

 

Equipments for Automated water tank cleaning

 

Automated water tank cleaning enables to clean water tank from small or medium size to large size such as water tanks of huge apartment blocks which have huge tank capacity. The equipment chooses differs depending on size and shape of water tank. DPC tank cleaning service comes with high water jet cleaners, anti-bacterial agents and disinfectants for the cleaning work. Following are some of important equipments used for cleaning water tank.

 

High pressure plunger pumps: High pressure cleaning and washing is normally done by high pressure water jet pump to remove dirt, mud, oil, grease, paint, debris, scale etc. High pressure reciprocating plunger / piston pump develops high pressure due to smaller diameter orifice of the nozzle. Appropriate flow rate and pressure can easily clean the job. Walls & ceilings of the tanks are cleaned using special high pressure jet.

 

Vacuum Cleaning: A vacuum pump is used to remove sludge after cleaning the tank floor with a high pressure jet. An industrial pump is then used to clean the remaining dirt.

 

Reactionary Force Tank Wash Nozzles: Ideal for clean-in-place and low-pressure cleaning and rinsing in harsh chemical and corrosive environments. The reactionary force of the fluid leaving the nozzle orifice rotates the nozzles.

 

Fixed-Spray or Fixed position nozzles: Fixed position nozzles provide complete coverage using full cone nozzles. Advantages include a simple design, no moving parts and wide range of spray coverage.